Ladle turning mechanism



E. A. FREY March 15, 1932.

LADLE TURNING MECHANI SM Filed Feb. 3, 1931 r I: v

ATTORN EY J5 my invention will be brought outin the fol-' tipping mechanism. Figure 4 is an end view 22 and belowthe band 4, are steel trunnions 'nion bushing and strap connection on the having oppositely disposed spouts 22 lto Patented, Mar. '15, 1932 we smesi P TENT) EUGENE Al REY, on MINS'DER, [01110, ssrenon To THE mnns'rnmnnourrivmn'r com .rANY, F MINs'rnR, 01110, A CORPORATION .O F O'HIO I e LADLE TURNING MEcHAnrsM.

.Application'filed February 3,1931. ,ser alnofaiaisaj This invention relates to improvements in crane ladle gearing and thelike.

It is one of the principal objects of my invention to provide a ladle gearing that'is' anchored to andoperates througha trunnion bushing, and has no connection with the bail.

It is another importantobject of my invention to provide a self-contained, self-locking ladle gearing that is 'not affected by the expanmolten metal, which'usually results in distortion and misalinement in the tilting meoha-' nism. I

Other important and incidental objects of lowing specification and annexed claims.

In the accompanying drawings, Figure 1 is a side view of my tiltingmechanism applied to a crane ladle. Figure 2 is an end view of my tipping mechanism applied to a crane ladle. Figure 3 is a side view ofthe of the tipping mechanism, partly broken away to 'disclosethe gearing. Figure 5 is a sectional view on the line 55 of Figure 3, showing the hand wheel gearing. 'AndjFig-: ure 6 is asectional view through the trun} gear side of the ladle. V 1

Referring now to the drawings; the numeral 1 indicates a conventional ladle or bowl facilitatepouring. The ladle is provided. with a riveted bottom 3 and is surrounded below its top with a reinforcing band 4. 1

Riveted to the opposite sides. of the ladle and positioned midway between the" spouts 5 and 6. These trunnions comprise a curved face plate-.7 that is securedto the ladleby rivets 8 and having, a radially projecting trunnion boss 9. Each of the bossesisstilt,

7 ened by webs 10 that .extendto the :ed-gesof trunnion shafts 11 and 11 that are received the plates 7.v (SeeFigures 1 2 and A v Each or the bosses 9fhassecured therein byflanged bail -bushings 12 and 12 Each ofthese bushings is semi-circular at the low- 3 'er end and tapers above. the trunnion 'toa narrow upper'end 13 at its junction with the 39: for "rotation of theshafti 1, 2 andfii) .loWer 1 10f an' 'inverted Vshapedbail "15. The bushings 12' and"12 -ar'econnected I i with the bail 15 'byfa yoke-shaped strap '16 17-17 are bolted to the b'ail 1 5 by-through bolts 18. (See, Figures 1; 3" a1'1d""6.) f

that' surround'sthe "bushings between its flanges and whose upper con-mergingfiends 'Th e'bushingfl2 hasa heavy 'outer'fiange I 19' of greater. diameter than' theinneriflang'e. Thi's fian e 19 is secured to-a gear housing 2. 20 by bolts '21 i that are received tapped holes 22 in the flange 19.

The lower half of the housing g'o f circular sectionjto-receive therein a worm 1 gear'23 mounted on the end otjthe trunnion shaft'll t'o whichit is keyed. The gear23 is provided with =holes 24in its web 25 for easy access to thenbolts- 21 to permit their i the gear. f (SeeFi'gureS-S and Q i Mounted'on roller bearings 26 and-27' removal or tightening without removal 1 of keyed thereto and positioned between the bearings 26' and 27 a worm'shaft 30 in drivanother bevel gear 32. The gear 32'i's1keyed The shaft" 33 is mounted on a roller "bearing :3 1'tha-tis mounted in aboss 35 on the side of the housing 20 and another roller 7 bearing 36 thatis received by a'boss 37; formed in the over-p1ate 38ffor the gear housing. 7 'I'The 'shaft'33 extends through thewcoverl38 and has secured to its outer end a handwheel (See Figures f Eachf of the V tained' by} bearing" caps 140 -41 that are secure'dtothebos'ses 35 and 37fb-y capsc'rews 42;

The bearing 26 "is"likewise ret-ainedqby. a

7 with- "in an upper elongated portion 28 ofthe hous- 'ing 20' is aj'worm shaft This shaft has to a hand wheel shaft 33*that parallels the I h f 11s a l beatings and '36 are rebearing cap -4l3"securled to theh'ousing 28'by unsecured =by1-cap screws 45: Now wh'en-the handwheel 39.: is rotated,

is prevented by the bolted connection with the trunnion 1bushing12? and. the bail that is maintained in practically aivertical position by the Weight of the ladle suspended from the crane hook (not shown).

When the operator removes his hands from trunnion shaft that passes through the bushing to which the case is anchored, to turn the ladle.

In testimony whereof I have hereunto set my hand this th day of January, 1931.

EUGENE A. FREY.

the wheel 39, the ladle will not tip or return to a normaliposition due to the worm gearingsand thus providing an automatic lock- :ing feature that is indispensable in the safe handling of molten metals.

My gear housing is adapted to be filled with oilor other lubricant and I have pro vided a drain plug 44; to permit draining the gear housing 20 when desired. Any movement of the bail or expansion or distortion of theladle will not affect the alinement. of the gearing which is entirely selfcontained and free of any connection with the bail.

It is thus seen thatI have provided a ladle tipping mechanism thatreduces one of the great hazards in foundry practioe the spilling of. molten metal; it provides a mechanism that promotes easyoperation; it is self locking; and has a reliable operation that is unaifected by expansion of the bowl, I v

bail or other, parts.

Having described myinvention, I claim: 1. In a (IQV'ICQ/Of the type described,-the

combination with a ladle, a bail therefor, a trunnion bushlng carried by-sald ball, a gear housing secured to said bushing, free of any contact with the bail itself, and gear. mechanism in said housing operatively connected through the trunnion bushing to the ladle for turning the same. a

2. In a device of the type described, the combination with a ladle, a bail therefor, a trunnion bushing carried by said bail, a. gear housing secured to said bushing, free of any contact with said bail, a-shaftsecured at its inner end to the ladle and projecting through thebushing into the gear housing, and gear- 7 ing in the latter operatively connected to the shaft to turn the ladle.

3. In a device of the type described, the

combination with a ladle, a trunnion fixedly I secured to each sideof. said ladle, a boss on each trunnion, ashaft in each trunnion boss,

an inverted V-shape'd bail, a bushing carried by the lower end of. each legof the bail, to

receive a respective trunnion shaft, aagear case wholly supported by one '0f said bushings, without contact-with the bail itself so as not to be distortedithereby, andv gearing in said case, operatively connected to the 

